Answers for "how to give gap in flex"

flexbox gap

gap: 10px 20px; /* ⇳ and ⬄ */

row-gap: 10px; /* ⇳ only */
column-gap: 20px; /* ⬄ only */

add space between flex items

.flex-gap {
  display: inline-flex;
  flex-wrap: wrap;
}

.flex-gap > div {
  margin: 6px; /* HERE WE ADD THE SPACE */
}

css column gap flex

div{
    	column-count: 3;
        column-gap: 30px;
        background: yellow;
}